MIRROR Russian patent published in 1995 - IPC

FIELD: laser engineering. SUBSTANCE: mirror has substrate with optical surface and base with through channels, which is located between back and reflecting surfaces of the mirror. Channels are made at the back side of the base to get crossing with through channels, which are disposed between rare and optical surfaces. Number of through channels relates to number of channels disposed at the back side, is chosen to be equal to ≥ 0,5,, and their diameters relate as 1-3. Diameter of through channels is chosen from 0,3-0,6 height H of the mirror. Number of channels is chosen from (1-2,5)D/H relation, where D is diameter or diagonal of the mirror, and H is mirror height. Surface of through channels may have a specific relief. EFFECT: improved efficiency of operation. 4 cl, 1 dwg